Cesium fluoride → (2S)-ethyl 2-(2-(azetidin-1-yl)-7-(2,3-dihydropyrano[4,3,2-de]quinolin-7-yl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyacetate

HRID 879263ノート

反応式

HRID 879263 の反応式
[N:1]1([C:5]2[S:6][C:7]3[C:13](OS(C(F)(F)F)(=O)=O)=[C:12]([C@H:22]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[C:23]([O:25][CH2:26][CH3:27])=[O:24])[C:11]([CH3:33])=[CH:10][C:8]=3[N:9]=2)[CH2:4][CH2:3][CH2:2]1.Cl.[O:35]1[C:46]2[C:47]3[C:42]([C:43](B(O)O)=[CH:44][CH:45]=2)=[N:41][CH:40]=[CH:39][C:38]=3[CH2:37][CH2:36]1.[F-].[Cs+].C([O-])(O)=O.[Na+]>CC(OC)(C)C.COC1C=CC=C(OC)C=1C1C(P(C2CCCCC2)C2CCCCC2)=CC=CC=1.C1C=[C-]C(CCN)=CC=1.Cl[Pd+].COCCOC>[N:1]1([C:5]2[S:6][C:7]3[C:13]([C:43]4[C:42]5[C:47]6=[C:38]([CH2:37][CH2:36][O:35][C:46]6=[CH:45][CH:44]=4)[CH:39]=[CH:40][N:41]=5)=[C:12]([C@H:22]([O:28][C:29]([CH3:30])([CH3:32])[CH3:31])[C:23]([O:25][CH2:26][CH3:27])=[O:24])[C:11]([CH3:33])=[CH:10][C:8]=3[N:9]=2)[CH2:2][CH2:3][CH2:4]1

参加物

7

反応物 4

HCID 25953Cesium fluorideHCID 516892Sodium BicarbonateHCID 66631384(2,3-Dihydropyrano[4,3,2-de]quinolin-7-yl)boronic acid hydrochlorideHCID 86699784(S)-ethyl 2-(2-(azetidin-1-yl)-5-methyl-7-(trifluoromethylsulfonyloxy)benzo[d]thiazol-6-yl)-2-tert-butoxyacetate

生成物 1

HCID 71003367(2S)-ethyl 2-(2-(azetidin-1-yl)-7-(2,3-dihydropyrano[4,3,2-de]quinolin-7-yl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyacetate収率 52.7%

試薬・触媒・溶媒 2

HCID 71311105SPhos Palladacycle触媒2 回HCID 80711,2-Dimethoxyethane溶媒

反応条件

温度
110 °C

実験手順

To a solution of 33 (38 mg, 0.075 mmol) in freshly distilled DME (1 mL) was added 2,3-dihydropyrano[4,3,2-de]quinolin-7-ylboronic acid hydrochloride (24 mg, 0.097 mmol), chloro(2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl)[2-(2-aminoethylphenyl)]palladium(II) methyl-t-butylether adduct, [SPhos Palladacycle] (5 mg, 0.0075 mmol), and cesium fluoride (46 mg, 0.3 mmol). The reaction mixture was heated in the microwave at 110° C. for 45 min. A saturated solution of NaHCO3 (3 mL) was added, and the layers were separated. The aqueous layer was extracted with EtOAc. The combined organic layer were dried, filtered, and concentrated in vacuo. The crude material was purified by column chromatography (EtOAc/hexanes) to give 21 mg of 34. LCMS-ESI+: calc'd for C30H33N3O4S: 532.2 (M+H+); Found: 532.0 (M+H+).

後処理

  1. customthe layers were separated
  2. extractionThe aqueous layer was extracted with EtOAc
  3. customThe combined organic layer were dried
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude material was purified by column chromatography (EtOAc/hexanes)

出典と根拠

ORDレコード
ord-27253c9b8893499482a678da4061947c
出典データセット
uspto-grants-2015_03
特許番号
US08987250B2

反応ノート

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